Chuck



FIG. 1 is a front perspective view of the invention;

FIG. 2 is a front elevational view of the invention;

FIG. 3 is a rear elevational view of the invention

FIGS. 4 and 5 are top and bottom plan views of the invention; and,

FIGS. 6 and 7 are left- and right-side elevational views of the invention. 

The ornamental design for a chuck, as shown and described. 